Home / 208,010,742.90-312,016,114.35-156,614,493.30

Finding the Fourth Proportional to 208,010,742.90, 312,016,114.35 and 156,614,493.30

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Solution

The fourth proportional to 208,010,742.90, 312,016,114.35 and 156,614,493.30 is: 234,921,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,010,742.90 : 312,016,114.35 = 156,614,493.30 : x
  2. Step 2: Convert to fraction form
    208,010,742.90/312,016,114.35 = 156,614,493.30/x
  3. Step 3: Cross multiply
    208,010,742.90x = 312,016,114.35 × 156,614,493.30
  4. Step 4: Simplify right side
    208,010,742.90x = 48,866,245,650,360,120
  5. Step 5: Solve for x
    x = 48,866,245,650,360,120/208,010,742.90
  6. Step 6: Final answer
    x = 234,921,739.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.